Global Patent Index - EP 1065290 A1

EP 1065290 A1 2001-01-03 - Heat resistant nickel base alloy

Title (en)

Heat resistant nickel base alloy

Title (de)

Hitzebeständige Nickelbasislegierung

Title (fr)

Alliage à base de nickel résistant à la chaleur

Publication

EP 1065290 A1 (EN)

Application

EP 00401832 A

Priority

  • JP 18676999 A
  • JP 21151999 A

Abstract (en)

A heat resistant Ni base alloy comprises, on a mass% basis, 0.1% or less C, 2% or less Si, 2% or less Mn, 0.005% or less S, 10 to 25% Cr, 2.1 to less than 4.5% Al, 0.08% or less N, 0.001 to 1% in total of one or more elements of B: 0.03% or less, Zr: 0.2% or less and Hf: 0.8% or less, and 2.5 to 15% in total of one or more elements of Mo: 0.01 to 15% and W: 0.01 to 9%. The alloy is suitable as a material for a pipe used in ethylene cracking furnace.

IPC 1-7 (main, further and additional classification)

C22C 19/05

IPC 8 full level (invention and additional information)

C22C 19/03 (2006.01); C22C 19/05 (2006.01)

CPC (invention and additional information)

C22C 19/055 (2013.01); C22C 19/056 (2013.01)

Citation (search report)

  • [Y] WO 9527803 A1 19951019 - HOSKINS MFG CO [US]
  • [A] US 2515185 A 19500718 - GEORGE BIEBER CLARENCE, et al
  • [AD] US 4671931 A 19870609 - HERCHENROEDER ROBERT B [US], et al
  • [XY] PATENT ABSTRACTS OF JAPAN vol. 004, no. 129 (C - 024) 10 September 1980 (1980-09-10)
  • [X] RYBNIKOV A I ET AL: "Service life of heat-resistant alloys with protective coatings in thermocyclic loading", SURFACE AND COATINGS TECHNOLOGY, JAN. 1996, ELSEVIER, SWITZERLAND, vol. 78, no. 1-3, pages 103 - 112, XP000940850, ISSN: 0257-8972
  • [A] PATENT ABSTRACTS OF JAPAN vol. 003, no. 037 (C - 041) 29 March 1979 (1979-03-29)
  • [AD] PATENT ABSTRACTS OF JAPAN vol. 017, no. 704 (C - 1146) 22 December 1993 (1993-12-22)
  • [AD] DATABASE WPI Section Ch Week 198211, Derwent Publications Ltd., London, GB; Class M27, AN 1982-20871E, XP002148828

Designated contracting state (EPC)

BE DE FR GB SE

EPO simple patent family

EP 1065290 A1 20010103; EP 1065290 B1 20030827; CA 2312581 A1 20001230; CA 2312581 C 20041026; DE 60004737 D1 20031002; DE 60004737 T2 20040617; KR 100372482 B1 20030217; KR 20010007520 A 20010126; US 6458318 B1 20021001

INPADOC legal status


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2014-05-08 [REG DE R081] CHANGE OF APPLICANT/PATENTEE

- Owner name: NIPPON STEEL & SUMITOMO METAL CORPORATION, JP

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